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Archive.org vs Energy-Charts API

Same instrument, two spec sheets — measured, not claimed.

APIArchive.orgHEALTHY65Energy-Charts APIHEALTHY81
Uptime · 30d
Uptime · 90d97.1%99.02%
Uptime · 30d96.7%98.3%
P50 · ms8131178
P95 · ms27642855
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (rights vary per item)Unverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Archive.org vs Energy-Charts API: common questions

Which is more reliable, Archive.org or Energy-Charts API?

On our scheduled checks, Energy-Charts API leads on measured uptime — Archive.org at 97.1% versus Energy-Charts API at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Archive.org or Energy-Charts API?

Archive.org has the lower median latency in our checks — Archive.org responds in 813 ms versus Energy-Charts API at 1178 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Archive.org and Energy-Charts API need an API key?

Neither needs a paid key — Archive.org is callable with no signup, and Energy-Charts API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Archive.org and Energy-Charts API from the browser?

Yes — both Archive.org and Energy-Charts API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Archive.org and Energy-Charts API free for commercial use?

Archive.org has unclear commercial terms, and Energy-Charts API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.